Transmission-gearing.



- W. E. JENKINS.

TRANSMISSION GEARING.

APPLICATION FILED MAR.18,1909.

944,872. Patented Dec.28, 1909.

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W. E. JENKINS.

TRANSMISSION GEARING. APPLICATION FILED MAR.18,1909.

944,872. Patented Dec. 28, 1909.

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APPLICATION FILED MAR.18,1909.

Patented Dec.28,1909.

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W. E. JENKINS. TRANSMISSION GEARING. APPLIOATION FILED MAR. 18,1909.

Patented Dec.28, 1909.

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WILLIAM'E. JENKINS, or MILToN, PENNSYLVANIA.

,.'I ItAi\TSMISSION-GEARINGQ i Speoificationpf Letters Patent. Pate11te1.])ec, 28-, 19()9 Application filed March 18, 1909. Serial No. 484,212.

To all whom it may wmm:

Be it known that-I, lV'iLLIAM"EQJENKINs, a citizen of the United States,residing at Milton, in the county of Northumberland and State ofPennsylvania, have invented certain new and useful Improvements inTransmission-Gearing, of which the following is a specification. 3 a

My invention relates to an improvement in transmission gearing, and theobject is to provide means for operating the driven and drive shafts,whereby either thedrive shaft will rotate faster than the drivenshaft,or the driven shaft will rotate faster than the driving shaft; anda further object is in the provision whereby the means which regulatesthe speed of the driving and driven shafts can be operated for reversingthe driven shaft. v The invention consists in certain novel features ofconstruction and combinations of parts which will be hereinafterdescribed and pointed out in the claims. a i

In the accompanying drawings:Figure 1 is a top plan view showing thedriving and driven wheels out of engagement with the spherical disks,Fig. 2 is a top plan view showing the driving and driven wheels inengagement with the spherical disks, Fig. 3

is a view in top plan showing the disks'in engagement with the drivingand driven wheels for reversing the direction of rotation of the drivenwheel, and Fig. 4 is a view in side elevation showing certainparts insection, and the driving wheels removed.

A represents the frame upon which the driven and driving shafts 1 and 2,respectively, are slidablymounted. A friction wheel 3 is mounted on thedriving shaft, and a friction wheel 4 is mounted on the driven shaft. Apost 7 is mounted in the frame A between the two frictional disks, andjournaled in the post is one end of the driven shaft 2. Collars orabutments 5, are formed in the rear of the wheels 3 and 4, and on thedriving and driven shafts, against which levers 6 are brought intoengagement for forcing the friction wheels 3 and 4 inward for operatingthe spherical disks B and C. Posts 8 are supported within the frame A ineccentric bearings which are composed of sleeves 9, in which the postsare received, and the sleeves are adapted to be received within theframe. The outer surface of the sleeves are screw-threaded, upon whichnuts 10, 10, are received for holding the posts in ments' of the sleevesby the nuts 10, wear can be taken up from the posts which are capable'of revolving within the sleeves of bearings 9, and by turning theseeccentric bearings or sleeves 9, the wear can be taken up very readilywithout the necessity of substituting new bearings as the bearingsbecome worn. Shafts 11, are journaled in the posts 8, and are providedwith a roller bearing in the post, the bearings being held in positionby collars 12 on the shafts 11.

Mounted on the shafts 11 are the spherical disks B, B, C, C, each shaft11. carrying two disks' Mounted on the posts 8 are levers 13 which areengaged by links 14, for oscillating the spherical disks for changingthe speed of the two friction wheels.

When the levers 6 are operated for throiw ing thefriction wheels 3 and 4inwardto engage the spherical disks B and C, motion having beentransmitted to the driving shaft 1, motion is transmitted to' thespherical disks B and C, which in turn transmit motion to the drivenshaft 2 through friction wheel 4,thereby driving the driven shaft for aforward speed. The speed of the driven shaft is regulated by oscillatingthe spherical disks by the levers 13 and the links-14, lVhenthespherical disks are moved toward l proper position. the differentadjustthe driving wheel 3, the central portion of the spherical wheelsis brought into contact with the driving wheel, and the outer edge orportion'in contact withthe driven wheel 4, thereby causing'the wheel 4to revolve at an increased rate of speed. When the disks B and C aremoved in the opposite direction, or toward the wheel 4,it will bring theouter portion of the disk in contact with the driving wheel 3, and thecentral portion in contact with the driven'wheel 4, thereby reducing thespeed of the driven wheel 4.

In reversing the motion of the driven wheel 4, the posts are rotated bythe levers 13, causing disks B and C to be brought into engagement withthe driving-wheel 3, and the disks B and C to be brought into engagementwith the friction wheel 4. The motion from the driving shaft 1 to causethe wheels B and G to rotate, transmits the same rotary motion to thedisks B and G, and the shafts 11, and as the disks B and C are inengagement with the driven wheel 4, the wheel 4 is caused to travel thesame direction as the driving wheel 3.

It is my intention to apply this transmission gearing to motor vehicles,or any class of vehicles upon which a frictional gearing could be used.I have provided a simple means for obtaining different speeds, andareversing mechanism whereby the motion of the driven wheel is reversedby oper ating the same lever which would be used for changing theforward speed of the driven wheel.

The provision for taking up the wear of the posts or shaft whichsupports the shaft of the spherical disk is simple and permits of thewear being taken up very readily, and without the necessity ofsubstituting new bearings for the posts as they become worn.

It is evident that more or less slight changes might be resorted to inthe form and arrangements of the several parts described withoutdeparture from the spirit and scope of my invention, and hence I do notwish to limit myself to the exact construction herein set forth, but

Having fully described my invention, what I claim as new and desire tosecure by Letters Patent, is

1. In a transmission gearing, the combination with driving and drivenwheels, of disks adapted to engage the driving and driven wheels, andmeans for operating the disks for giving a forward or reverse motion tothe driven wheel.

2. In a transmission gearing, the combination with a frame, of drivingand driven wheels, shafts mounted on the frame, a plurality of disksadapted to engage the driving and driven wheels, and means for operatingthe disks whereby a forward motion is transmitted to the driven wheelwhen certain of the disks are in engagement with the driving and drivenwheels, and a reverse motion is transmitted to the driven wheel, whenone of the disks is in engagement with the driving wheel and anotherdisk is in engagement with the driven wheel.

3. In a transmission gearing, the combination with a frame, of drivingand driven wheels, shafts mounted on the frame, two spherical disksmounted on each shaft adapted to engage the friction wheels, and

'means for rotating the shafts, whereby a forward motion will betransmitted to the driven wheel and upon further rotation of the shaftsa reverse motion will be transmitted to the driven wheel.

a. In a transmission gearing, the combination with a frame, of drivingand driven wheels, posts journaled in the frame, shafts movably mountedon the posts, disks mounted on the shafts, and means for operating theshafts whereby certain disks are actuated for transmitting forwardmotion to the driven wheel and upon further movement of the shafts allof the disks are brought into engagement with the driving and drivenwheels, for transmitting a reverse motion to the driven wheel.

5. In a transmission gearing, the combination with a frame, of drivingand driven wheels, shafts mounted on the frame, two disks mounted oneach shaft, and means for operating the shafts whereby two of the disksare brought into engagement with the driving wheel and two of the diskswith the driven wheel whereby a reverse motion is transmitted to thedriven wheel.

6. In a transmission gearing, the combination with a frame, of drivingand driven wheels, posts ournaled in the frame, shafts rotatably mountedon the posts, disks mounted on the shafts, adapted to engage the drivingand driven wheels, and means for operating the shafts for changing thespeed of the driven wheel.

7. In a transmission gearing, the combination with a frame, of drivingand driven wheels, posts ournaled in the frame, means for adjusting theposts for taking up the wear of the posts, shafts rotatably mounted onthe posts, disks mounted on the shafts, adapted to engage the drivingand driven wheels, and means for operating the shafts for changing thespeed of the driven wheel.

8. In a transmission gearing, the combination with a frame, of drivingand driven wheels, posts, eccentric bearings on the frame in which theposts are journaled whereby the wear of the posts may be taken up,shafts rotatably mounted on the posts,

friction disks on the shafts adapted to engage the driving and drivenwheels, and means for operating the shafts whereby a forward and reversemotion can be transmitted to the driven wheel.

In testimony whereof I aflix my signature, in the presence of twowitnesses.

IV. E. JENKINS.

\Vitnesses IVM. P. VVENDLE, CLARENCE B. MI'roHnLL.

